Adjustable mount for sealed light systems

ABSTRACT

An adjustable mount for use with light fixtures that are scaled to prevent entry of moisture and contaminants. O-ring seals are utilized to connect and seal the components of the adjustable mount so that it is not a source of moisture or loss of vacuum. The adjustable mount is a knuckle-type mount that connects a light fixture with a junction box or other source of electrical power. The adjustable mount provides a full range of vertical and rotational angles without damaging the electrical wiring that is sealed inside the mount. Frictional connections in the mount allow the lighting angle to be set without the necessity of tightening the set screws which connect the components together.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the benefit of U.S. Provisional Application No.60/086,927 filed May 27, 1998.This application is a divisional reissueapplication of Reissue patent application Ser. No. 10/442,311, now U.S.Pat. No. Re. 39,084, filed on May 19, 2003 and claims priority of thatapplication. Accordingly, more than one reissue application has beenfiled for the reissue of U.S. Pat. No. 6,161,948, including the presentapplication and application Ser. No. 10/442,311, now U.S. Pat. No. Re.39,084.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The field of the present invention relates generally to devices foradjustably mounting a light for use in sealed lighting systems, such asthose utilized for outdoor lighting. More specifically, this inventionrelates to mounting devices that allow adjustment of the direction of alight while maintaining the integrity of the sealed light system.

2. Background

It is well known that many people use lights, such as spotlights andother types of lights, in outdoor applications. These applicationsgenerally require a scaled lighting system to prevent moisture fromentering the light housing, lamp or electrical wiring components of thelight fixture. Often it is desirable to aim the light fixture or aseries of light fixtures in a certain direction to obtain a desiredeffect. In order to set the direction of the light emanating from thelight fixture and to be able to re-direct or adjust the direction of thelight at a later date, the light mount assembly must include some typeof adjustable connection that is able to maintain the integrity of thesealed system. However, in order to prevent damage to the wiring thatconnects the power source to the lamp, most light fixtures connectionshave limited adjustability. Those adjustable light mounts that have wideadjustability often have connections that do not adequately protect thewiring from damage or maintain a sealed light system.

The usual connection for obtaining adjustability for outdoor lighting isa knuckle joint located between the light housing and the electrical boxor mounting canopy. Currently available adjustable mounts for outdoorlighting systems typically utilize a knuckle joint having opposing sideswith serrated edges that are rotated to lock together to form thedesired light angle. Several problems exist with these type of knucklejoints. The problems include limitation on the angles available (due tothe fact that only when the serrated edges mate can the joint lock inplace) and difficulty in setting the desired angle. The difficulty insetting the desired angle results from having to hold the joint togetherwhen setting the angle of the light, which either requires one person togo through several iterations to set the angle or the use of a secondperson to let the first person know when the lighting angle is thatwhich is desired. Without a second person, the person setting the angleof the light must set the angle of the light, then stand back and viewit and, if necessary, loosen the connection and repeat the process.Naturally, the need to utilize a second person or go through aniterative process can require significant time and effort just to set orreset an outdoor light. In many commercial uses of outdoor lights, wherea number of lights may be used, this process can be very burdensome.What is needed, is an adjustable mount for outdoor lights that providesinfinite adjustability and allows a single person to easily set theangle of the light while maintaining the integrity of the sealed lightsystem.

SUMMARY OF THE INVENTION

The adjustable light mount of the present invention solves the problemsidentified above. That is to say, the present invention discloses amounting device for sealed light systems that allows one person toinfinitely adjust the angle of an outdoor light while providing aconnection that maintains the integrity of the sealed light system. Morespecifically, the present invention provides a knuckle joint thatprovides frictional resistance to movement in order allow one person toadjustably set the lighting angle while providing a protected paththrough the knuckle joint for the wires that connect to the lamp.

The present invention comprises three principal components that can bemade out of machined aluminum, such as 6061-T6, or other materials.These components are the support member, base member and stud member.The upper surface of the support member sealably connects to the lightfixture housing. The side of the support member pivotally connects tothe side of the base member. The bottom end of the stud memberthreadably connects to a junction box or the like which supplies powerto electrically charge the lamp. The upper end of the stud memberfrictionally connects inside an opening at the bottom of the basemember. Sealing members, such as O-rings, are utilized to seal theconnection of the various members to each other and to the fixturehousing.

A tapered post on the base side is sized and configured to fit within atapered opening in the support side and provide some degree offrictional resistance to movement to make setting or adjusting thelighting angle easier than the prior art devices. Locking set screws areutilized to lock the rotational angle (the base member to stud memberconnection) and the vertical angle (the base member to support memberconnection) to obtain the desired lighting angle or effect.

Electrical wiring from the junction box passes through a stud opening,which traverses the entire stud member, then into the base opening andthe second passageway located in the base member, and then through thefirst passageway in the support member to connect to the lamp. A pair ofrotational stop members are utilized to prevent the adjustable mountfrom rotating more than 360 degrees, which would otherwise result indamage to the electrical wiring from the twisting of the wire inside theadjustable mount.

Accordingly, the primary objective of the present invention is toprovide an adjustable mount for sealed light fixtures that provides aneasy to use mechanism for adjusting and setting the desired lightingangle for light emanating from the light fixture.

It is also an important objective of the present invention to provide anadjustable mount that allows the electrical wiring necessary to power alamp in a sealed light system to pass through the mount with damagingthe wire or compromising the integrity of the sealed light system.

Another important objective of the present invention is to provide anadjustable light mount that provides infinite angle adjustability andwhich can be adjusted and set by a single person.

The above and other objectives of the present invention will beexplained in greater detail by reference to the attached figures and thedescription of the preferred embodiment which follows. As set forthherein, the present invention resides in the novel features of form,construction, mode of operation and combination of parts presentlydescribed and understood by the claims.

BRIEF DESCRIPTION OF THE DRAWINGS

In the drawings which illustrate the best modes presently contemplatedfor carrying out the present invention:

FIG. 1 is an exploded view of the adjustable mount of the presentinvention;

FIG. 2 is a side view of a typical light fixture utilizing theadjustable mount of the present invention;

FIG. 3 is a cross-sectional side view of the primary embodiment of theadjustable mount of the present invention;

FIG. 4 is a plan view of the support side of the support member;

FIG. 5 is a perspective view of the base member of the presentinvention;

FIG. 6 is a end view showing the base opening of the base member; and

FIG. 7 is a plan view of the upper surface of the support member.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

With reference to the figures where like elements have been given likenumerical designations to facilitate the reader's understanding of thepresent invention, and particularly with reference to the embodiment ofthe present invention illustrated in FIGS. 1 through 8, the preferredembodiment of the present invention is set forth below. The adjustablemount for sealed light fixtures of the present invention, designatedgenerally as 10, primarily comprises a support member 12, base member 14and stud member 16 connected together to form an adjustable mount 10 fora sealed light fixture 18. As is shown in FIG. 2, the typical sealedlight fixture 18 has a housing 20 and cap 21 which enclose lamp 24.Housing 20 sealably connects to upper surface 24 of support member 12utilizing a first sealing member, such as a high temperature siliconeO-ring 25, as shown in FIG. 7. Stud member 16 threadably connects to asource of electrical power, such as an outlet box or mounting canopy 26having electrical wires 27 that can connect to lamp 24.

To facilitate adjustability of the adjustable mount 10, support member12 pivotally connects to base member 14. However, for ease of use,adjustable mount 10 should include a mechanism to limit the amount offree pivotal movement for support member 12. As best shown in FIGS. 1and 3, the preferred embodiment of the present invention includessupport member 12 with a tapered opening 28 in support side 30, whichabuts against base side 32 on base member 14. Extending outward frombase side 32 is a tapered post 34 that is sized and configured totightly fit inside tapered opening 28. Tapered opening 28 and taperedpost 34 can be sized and configured so that when support member 12 isinstalled on base member 14, support member 12 can be manually pivotedrelative to base member 14 yet will not freely pivot, even with theadditional weight of light fixture 18 attached to support member 12. Ifproperly sized and configured, tapered opening 28 and tapered post 34will provide an internal compression fit that creates a positive lockwhen the user pivots support member 12 to aim the light emanating fromlight fixture 18, such that support member 12 (and therefore lightfixture 18) will stay in place even when the user releases his or hergrip on light fixture 18 or support member 12.

As best shown in FIG. 3, to lock the light in the desired verticalangle, a first locking mechanism, such as locking screw 22, can be used.To ensure the integrity of the sealed light system, a second sealingmember 38 should be located between support member 12 and base member14, as best shown in FIGS. 1 and 4. The preferred embodiment of thepresent invention utilizes a high temperature silicone O-ring as secondsealing member 38. In addition to providing a water-tight seal, secondsealing member 38 places a pressure loading on the threads of lockingscrew 36 such that vibrations will not cause locking screw 36 to loosen,as often happens with most other knuckle connectors. To allow theelectrical wire to reach lamp 22 in housing 20, support member 12 hasfirst passageway 40, shown in FIGS. 3 and 4, that passes through thesupport side 30 of support member 12 to upper surface 24 of supportmember 12 where housing 20 connects.

In the preferred embodiment, base member 14 has second passageway 42,shown in FIGS. 3, 4 and 6, that interconnects first passageway 40 withbase opening 44 at the bottom of base member 14. Second passageway 42goes through base member 14 to allow the electrical wires to reachhousing 20 and lamp 22. Base side 32 has slot 46 to hold the electricalwires between first passageway 40 and second passageway 42 to preventdamage to the electrical wire during rotation of adjustable mount 10. Asshown in FIG. 5, in the preferred embodiment slot 46 encircles taperedpost 34.

A rotational limiting mechanism is necessary to prevent base member 14from rotating more than 360 degrees to avoid twisting and, ultimately,breaking or otherwise damaging the electrical wiring. In the preferredembodiment, shown in FIGS. 1 and 6, the rotational limiting mechanismincludes first rotational stop member 48 inside base opening 44 of basemember 14 and second rotational stop member 50 at the upper end 52 ofstud member 16. First rotational stop member 48 interacts with secondrotational stop member 50 to limit the amount base member 14 can rotaterelative to stud member 16.

Base opening 44 has an inner wall 54 which interacts with upper end 52of stud member 16 when adjustable light mount 10 is assembled to limitthe free rotation of base member 14. The outer diameter of upper end 52should be sized and configured to frictionally interact with inner wall54 so that it limits the free rotation of base member 14. To provide forfurther frictional limitation and seal the upper end 52 of stud member16 can be provided with a third sealing member 56 to seal the basemember 14 to stud member 16 connection. As with the other sealingmembers, third sealing member 56 can be a high temperature siliconeO-ring that encircles upper end 52 of stud member 16 to provide africtional, sealed connection with inner wall 54 in base member 14.Upper end 52 of stud member 16 and third sealing member 56 should besized and configured such that the frictional resistance created withinbase member 14 is sufficient to prevent unwanted rotation of base member14 (and therefore light fixture 18) to allow the user to set therotational angle he or she desires for the light emanating from lamp 22.To prevent unwanted movement of third sealing member 56, upper end 52 ofstud member 16 should be configured to include an O-ring slot (notshown) or other mechanism for holding third sealing member 56 in place.A second locking mechanism is needed to lock the position of base member14 relative to stud member 16 once the desired light position isobtained. In the preferred embodiment, second locking mechanism is a setscrew 58 going through base member 14, as shown in FIG. 3, andoperatively connecting to stud member 16.

Lower end 60 of stud member 16 should be suitable for connecting thelight mount 10 to a junction box or mounting canopy, shown as 26 on FIG.2. The typical connection will be a threaded lower end 60, shown in FIG.1, that can be threadably connected to the junction box or mountingcanopy 26 utilizing integral nut 62, or a similar tightening mechanism.Fourth sealing member 64, such as an O-ring, ensures the integrity ofthe sealed light system by sealing the lower end 60 of stud member 16 tojunction box 26 connection. Stud member 16 has a stud opening 66 throughits center to allow the electrical wires to pass through stud member 16to base member 14, support member 12 and lamp 22. As shown in FIG. 7,upper surface 24 of support member 12 can have one or more first screwreceiving sockets 68 to connect support member 12 to housing 20. Taperedopening 28 can have a second screw receiving socket 70, shown in FIG. 4,for receiving locking screw 36 to connect base member 14 to supportmember 12. Base member 14 can have a set screw opening 72, shown in FIG.3, for receiving set screw 58 that is utilized to fixedly connect basemember 14 to stud member 16.

In use, adjustable light mount 10 is placed between housing 20 andjunction box or support canopy 26 such that housing 20 connects tosupport member 12 and stud member 16 connects to junction box 26. Theelectrical wires from junction box 26 passes through stud opening 64 instud member 16 into base opening 44, second passageway 42 and then slot46 in base member 14 and then through first passageway 40 in supportmember 12 to lamp 22 in housing 20 of light fixture 18. Due to thefrictional resistance between support member 12 and base member 14 andbetween base member 14 and stud member 16, the user can fully rotate thelight fixture to obtain the desired angle for the light without havingto use the iterative steps described in the prior art or a secondperson. In addition, the lack of serrated edges or gears allows the userto have infinite adjustability for the lighting angle.

Third sealing member 56 allows the user to have full rotationalcapability for light mount 10 while maintaining the integrity of lightmount 10 to junction box 26 connection. Once the desired rotationalangle is obtained for the light mount 10, the user can lock base member14 to stud member 16 with set screw 58. After setting the base member 14to stud member 16 rotational angle, the user then can set the verticalangle of the light mount 10 by adjusting the base member 14 to supportmember 12 connection. Once the desired vertical angle is obtained, theuser can lock it into place with locking screw 36. Naturally, the orderof setting the angles can be reversed. This simple aim and lockcapability for use with a sealed light system provides significantbenefits over the prior art.

While there are shown and described herein certain specific alternativeforms of the invention, it will be readily apparent to those skilled inthe art that the invention is not so limited, but is susceptible tovarious modifications and rearrangements in design and materials withoutdeparting from the spirit and scope of the invention. In particular, itshould be noted that the present invention is subject to modificationwith regard to the dimensional relationships set forth herein andmodifications in assembly, materials, size, shape, and use.

What is claimed is:
 1. An adjustable mount for a light fixture,comprising: a support member connected to the light fixture, saidsupport member having a first passageway therethrough to allow passageof one or more electrical wires to said light fixture; a base memberhaving a second passageway therethrough and a base opening at one end ofsaid base member, said base member pivotally connected at an endopposite said base opening to said support member, said secondpassageway connected to said first passageway in said support member toallow passage of said electrical wires; first locking means for lockingsaid support member to said base member, said base and support membersarranged to prevent free pivotal movement of said base member relativeto said support member when said first locking means is not locking saidsupport member to said base member; a seal between said base member andsaid support member to prevent entry of moisture and contaminants; astud member having an upper end, a lower end and a stud opening throughsaid stud member, said upper end of said stud member in said baseopening and rotationally interacting therewith, said lower end of saidstud member configured to connect to a source of electrical power, saidstud opening connected to said second passageway in said base member toallow passage of said electrical wires from said source of electricalpower to said base member; and second locking means for locking saidbase member to said stud member.
 2. The adjustable mount according toclaim 1, further comprising first resistance means for limitingpreventing free pivotal movement of said base member relative to saidsupport member.
 3. The adjustable mount according to claim 2, whereinsaid first resistance means comprises a tapered opening in said supportmember and a tapered post in said base member, said tapered openingsized and configured to receive said tapered post and allow frictionalpivoting of said tapered post therein.
 4. The adjustable mount accordingto claim 1 further comprising second resistance means for limiting freerotational movement of said base member relative to said stud member. 5.The adjustable mount according to claim 4, wherein said secondresistance means comprises an inner wall in said base opening, saidinner wall sized and configured to frictionally receive said upper endof said stud member and allow frictional rotation of said base memberrelative to said stud member.
 6. The adjustable mount according to claim1 further comprising An adjustable mount for a light fixture,comprising: a support member connected to the light fixture, saidsupport member having a first passageway therethrough to allow passageof one or more electrical wires to said light fixture; a base memberhaving a second passageway therethrough and a base opening at one end ofsaid base member, said base member pivotally connected at an endopposite said base opening to said support member, said secondpassageway connected to said first passageway in said support member toallow passage of said electrical wires; first locking means for lockingsaid support member to said base member, said base and support membersarranged to prevent free pivotal movement of said base member relativeto said support member when said first locking means is not locking saidsupport member to said base member; a stud member having an upper end, alower end and a stud opening through said stud member, said upper end ofsaid stud member in said base opening and rotationally interactingtherewith, said lower end of said stud member configured to connect to asource of electrical power, said stud opening connected to said secondpassageway in said base member to allow passage of said electrical wiresfrom said source of electrical power to said base member; second lockingmeans for locking said base member to said stud member; and a slot insaid base member disposed between said first passageway in said supportmember and said second passageway in said base member when said supportmember and said base member are operatively connected, said slot sizedand configured to pass said electrical wires from said second passagewayto said first passageway.
 7. The adjustable mount according to claim 1further comprising first sealing means on said support member forsealing the connection between said support member and the lightfixture, second sealing means disposed between said support member andsaid base member for sealing the connection of said base member to saidsupport member, third sealing means on said upper end of said studmember for sealing the connection between said base member and said studmember, and fourth sealing means on said lower end of said stud memberfor sealing the connection between said stud member and said source ofelectrical power.
 8. The adjustable mount according to claim 7, whereinsaid first sealing means, said second sealing means, said third sealingmeans and said fourth sealing means are O-rings.
 9. The adjustable mountaccording to claim 1 further comprising rotational limiting meansinterconnecting said base member and said stud member for limitingrotation of said base member relative to said stud member to preventdamage to said electrical wires.
 10. The adjustable mount according toclaim 9, wherein said rotational limiting means comprises a firstrotational stop member in said base opening of said base member and asecond rotational stop member at said upper end of said stud member,said rotational limiting means limiting rotation of said base member toless than 360 degrees relative to said stud member.
 11. An adjustablemount for a light fixture, comprising: a support member connected to thelight fixture, said support member having a first passagewaytherethrough to allow passage of one or more electrical wires to saidlight fixture; a base member having a second passageway therethrough anda base opening at one end of said base member, said base memberpivotally connected at an end opposite said base opening to said supportmember, said second passageway connected to said first passageway insaid support member to allow passage of said electrical wires; firstresistance means for limiting preventing free pivotal movement of saidbase member relative to said support member when said base member is notlocked in place to said support member; first locking means for lockingsaid support member to said base member; a stud member having an upperend, a lower end and a stud opening through said stud member, said upperend of said stud member in said base opening and rotationallyinteracting therewith, said lower end of said stud member configured toconnect to a source of electrical power, said stud opening connected tosaid second passageway in said base member to allow passage of saidelectrical wires from said source of electrical power to said basemember; second resistance means for limiting free rotational movement ofsaid base member relative to said stud member when said base member isnot locked in place relative to said stud member; and second lockingmeans for locking said base member to said stud member.
 12. Theadjustable mount according to claim 11, wherein said first resistancemeans comprises a tapered opening in said support member and a taperedpost in said base member, said tapered opening sized and configured toreceive said tapered post and allow frictional pivoting of said taperedpost therein.
 13. The adjustable mount according to claim 11, whereinsaid second resistance means comprises an inner wall in said baseopening, said inner wall sized and configured to frictionally receivesaid upper end of said stud member and allow frictional rotation of saidbase member relative to said stud member.
 14. The adjustable mountaccording to claim 11 further comprising An adjustable mount for a lightfixture, comprising: a support member connected to the light fixture,said support member having a first passageway therethrough to allowpassage of one or more electrical wires to said light fixture; a basemember having a second passageway therethrough and a base opening at oneend of said base member, said base member pivotally connected at an endopposite said base opening to said support member, said secondpassageway connected to said first passageway in said support member toallow passage of said electrical wires; first resistance means forpreventing free pivotal movement of said base member relative to saidsupport member when said base member is not locked in place to saidsupport member; first locking means for locking said support member tosaid base member; a stud member having an upper end, a lower end and astud opening through said stud member, said upper end of said studmember in said base opening and rotationally interacting therewith, saidlower end of said stud member configured to connect to a source ofelectrical power, said stud opening connected to said second passagewayin said base member to allow passage of said electrical wires from saidsource of electrical power to said base member; second resistance meansfor limiting free rotational movement of said base member relative tosaid stud member; second locking means for locking said base member tosaid stud member; and a slot in said base member disposed between saidfirst passageway in said support member and said second passageway insaid base member when said support member and said base member areoperatively connected, said slot sized and configured to pass saidelectrical wires from said second passageway to said first passageway.15. The adjustable mount according to claim 11 further comprising firstsealing means on said support member for sealing the connection betweensaid support member and the light fixture, second sealing means disposedbetween said support member and said base member for scaling theconnection of said base member to said support member, third sealingmeans on said upper end of said stud member for sealing the connectionbetween said base member and said stud member, and fourth sealing meanson said lower end of said stud member for sealing the connection betweensaid stud member and said source of electrical power.
 16. The adjustablemount according to claim 11 further comprising rotational limiting meansinterconnecting said base member and said stud member for limitingrotation of said base member relative to said stud member to preventdamage to said electrical wires.
 17. An adjustable mount for a lightfixture, comprising: a support member connected to the light fixture,said support member having a first passageway therethrough to allowpassage of one or more electrical wires to said light fixture; a basemember having a second passageway therethrough and a base opening at oneend of said base member, said base member pivotally connected at an endopposite said base opening to said support member, said secondpassageway connected to said first passageway in said support member toallow passage of said electrical wires; first resistance means forlimiting preventing free pivotal movement of said base member relativeto said support member when said base member is not locked in place tosaid support member; first locking means for locking said support memberto said base member; a stud member having an upper end, a lower end anda stud opening through said stud member, said upper end of said studmember in said base opening and rotationally interacting therewith, saidlower end of said stud member configured to connect to a source ofelectrical power, said stud opening connected to said second passagewayin said base member to allow passage of said electrical wires from saidsource of electrical power to said base member; a slot in said basemember disposed between said first passageway in said support member andsaid second passageway in said base member when said support member andsaid base member are operatively connected, said slot sized andconfigured to pass said electrical wires from said second passageway tosaid first passageway; second resistance means for limiting freerotational movement of said base member relative to said stud member;rotational limiting means interconnecting said base member and said studmember for limiting rotation of said base member relative to said studmember to prevent damage to said electrical wires; and second lockingmeans for locking said base member to said stud member.
 18. Theadjustable mount according to claim 17, wherein said first resistancemeans comprises a tapered opening in said support member and a taperedpost in said base member, said tapered opening sized and configured toreceive said tapered post and allow frictional pivoting of said taperedpost therein.
 19. The adjustable mount according to claim 18, whereinsaid slot encircles said tapered post.
 20. The adjustable mountaccording to claim 17, wherein said second resistance means comprises aninner wall in said base opening, said inner wall sized and configured tofrictionally receive said upper end of said stud member and allowfrictional rotation of said base member relative to said stud member.21. The adjustable mount according to claim 20, wherein said firstresistance means comprises a tapered opening in said support member anda tapered post in said base member, said tapered opening sized andconfigured to receive said tapered post and allow frictional pivoting ofsaid tapered post therein.
 22. The adjustable mount according to, claim17 further comprising first sealing means on said support member forsealing the connection between said support member and the lightfixture, second sealing means disposed between said support member andsaid base member for sealing the connection of said base member to saidsupport member, third sealing means on said upper end of said studmember for sealing the connection between said base member and said studmember, and fourth sealing means on said lower end of said stud memberfor sealing the connection between said stud member and said source ofelectrical power.
 23. The adjustable mount according to claim 1, whereinsaid first seal comprises a first O-ring sandwiched between said basemember and said support member.
 24. An adjustable mount for a lightfixture, comprising: a support member connected to the light fixture,said support member having a first passageway therethrough to allowpassage of one or more electrical wires to said light fixture; a basemember having a second passageway therethrough and a base opening at oneend of said base member, said base member pivotally connected at an endopposite said base opening to said support member, said first and secondpassageways arranged to allow passage of said electrical wires; firstlocking means for locking said support member to said base member, saidbase and support members arranged to prevent free pivotal movement ofsaid base member relative to said support member when said first lockingmeans is not locking said support member to said base member; a studmember having an upper end, a lower end and a stud opening through saidstud member, said upper end of said stud member in said base opening androtationally interacting therewith, said lower end of said stud memberconfigured to accept electrical wires, said stud opening connected tosaid second passageway in said base member to allow passage of saidelectrical wires to said base member; and second locking means forlocking said base member to said stud member.
 25. An adjustable mountfor a light fixture, comprising: a support member connected to the lightfixture, said support member having a first passageway therethrough toallow passage of one or more electrical wires to said light fixture; abase member having a second passageway therethrough and a base openingat one end of said base member, said base member pivotally connected atan end opposite said base opening to said support member, said first andsecond passageways arranged to allow passage of said electrical wires;first locking means for locking said support member to said base member,said base and support members arranged to prevent free pivotal movementof said base member relative to said support member when said firstlocking means is not locking said support member to said base member; astud member having an upper end, a lower end and a stud opening throughsaid stud member, said upper end of said stud member in said baseopening and rotationally interacting therewith, said lower end of saidstud member configured to accept electrical wires, said stud openingconnected to said second passageway in said base member to allow passageof said electrical wires to said base member; second locking means forlocking said base member to said stud member, said base and stud membersarranged to limit free pivotal movement of said base member relative tosaid stud member when said second locking means is not locking said studmember to said base member; and a seal between said base member and saidsupport member to prevent entry of moisture and contaminants.
 26. Anadjustable mount for a light fixture, comprising: a support memberconnected to the light fixture, said support member having a firstpassageway therethrough to allow passage of one or more electrical wiresto said light fixture; a base member having a second passagewaytherethrough and a base opening at one end of said base member, saidbase member pivotally connected at an end opposite said base opening tosaid support member, said first and second passageways arranged to allowpassage of said electrical wires; first locking means for locking saidsupport member to said base member with a watertight seal between thetwo, said base and support members arranged to prevent free pivotalmovement of said base member relative to said support member when saidfirst locking means is not locking said support member to said basemember; a stud member having an upper end, a lower end and a studopening through said stud member, said upper end of said stud member insaid base opening and rotationally interacting therewith, said lower endof said stud member configured to connect to a source of electricalpower, said stud opening connected to said second passageway in saidbase member to allow passage of said electrical wires from said sourceof electrical power to said base member; and second locking means forlocking said base member to said stud member, with a watertight sealbetween the two, wherein said watertight seal between said stud memberand said base member is provided by an O-ring sandwiched between saidbase member and said stud member.
 27. An adjustable mount for a lightfixture, comprising: a support member connected to the light fixture,said support member having a first passageway therethrough to allowpassage of one or more electrical wires to said light fixture; a basemember having a second passageway therethrough and a base opening at oneend of said base member, said base member pivotally connected at an endopposite said base opening to said support member, said first and secondpassageways arranged to allow passage of said electrical wires; a slotbetween said first and second passageway arranged to prevent damage tosaid electrical wires when said base member pivots relative to saidsupport member; first locking means for locking said support member tosaid base member, said base and support members arranged to prevent freepivotal movement of said base member relative to said support memberwhen said first locking means is not locking said support member to saidbase member; a stud member having an upper end, a lower end and a studopening through said stud member, said upper end of said stud member insaid base opening and rotationally interacting therewith, said lower endof said stud member configured to connect to a source of electricalpower, said stud opening connected to said second passageway in saidbase member to allow passage of said electrical wires from said sourceof electrical power to said base member; second locking means forlocking said base member to said stud member; and a seal between saidbase member and said support member to prevent entry of moisture andcontaminants.
 28. The mount of claim 27, wherein said slot is in saidbase member.
 29. The mount of claim 27, wherein said slot is in saidsupport member.
 30. The mount of claim 27, wherein said slot iscircular.